No contradiction. There of course are numerous people who value the data on their desktops and laptops a lot. But they are not the majority. Even those who sort of value their data which they spent some effort producing still would rather take chances than overcome the friction of setting up a reliable backup.

This is what makes automatic backups so important: people keep taking chances until something bad happens, and then they re very relieved when they find out that their work has been backed up somewhere. The same thing applies to cloud apps: they relieve people from the burden of caring about their data's safety and integrity. The iCloud backup that allows you to restore your lost phone down to the state of draft "unsaved" texts is the gold standard here.